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Agata [3.3K]
4 years ago
5

I NEED HELP IS URGENT PLEASE!!!

Physics
1 answer:
Readme [11.4K]4 years ago
5 0

D.  For any projectile motion, there is a constant downwards acceleration due to gravity at all instances.  This not to be confused with velocity, which changes due to gravity at every moment along the object's path.

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PLEASE HELP!!
astraxan [27]

Answer:

Explanation:

\lambda\\ = v/f

^That is the formula we are going to use.

Now, we were given the speed (v), which is 20.

Now we need to find frequency, in order to solve for the wavelength.

Frequency is the amount of waves in a fixed unit of one second, meaning our F value is the value of 5 divided by 4.

5/4 = 1.25

Therefore our F is 1.25

Now lets plug it in

\lambda\\ = v/f

\lambda\\ = 20/1.25

\lambda\\ = 16

Conversion:

\lambda\\ = 8

3 0
3 years ago
What happens when the tempature of an object increases?
Mnenie [13.5K]
The object particle move faster.

3 0
3 years ago
Read 2 more answers
Suppose 1.4 mol of an ideal gas is taken from a volume of 2.5 m3 to a volume of 1.0 m3 via an isothermal compression at 27°C. (a
zysi [14]

Answer:

Part a)

Q = 3198 J

Part b)

It is compression of gas so this is energy transferred to the gas

Explanation:

Part a)

Energy transfer during compression of gas is same as the work done on the gas

In isothermal process work done is given by the equation

W = nRT ln(\frac{V_2}{V_1})

now we know that

n = 1.4 moles

T = 27 degree C = 300 K

V_2 = 2.5 m^3

V_1 = 1 m^3

now we have

W = (1.4)(8.31)(300)(ln\frac{2.5}{1})

Q = 3198 J

Part b)

It is compression of gas so this is energy transferred to the gas

6 0
4 years ago
Fido has a weight of 43 N. What is the mass of Fido?
algol13
  • <em>Answer:</em>

<em>m = 4.3 kg</em>

  • <em>Explanation:</em>

<em>Hi there ! </em>

<em>use formula</em>

<em>G = m×g => m = G/g</em>

<em>g ≈ 10N/kg</em>

<em>replace G ; g</em>

<em>m = 43N/(10N/kg)</em>

<em>m = 4.3 kg</em>

<em>Good luck !</em>

6 0
4 years ago
Who was the powerful and ruthless leader of the soviet union from 1929-1953 who also ordered the great purge in which he had his
Soloha48 [4]

Answer:

The correct answer is Joseph Stalin.

Explanation:

Joseph Vissarionovich Stalin was a Soviet politician who led the soviet union from 1929 - 1953. Stalin self declared himself as the dictator by 1930s. He was the person behind the Great Purge or "Great Terror" in which around a million were imprisoned and some 750,000 were executed. This campaign was led just to execute all those who were a threat to his party.

6 0
3 years ago
Read 2 more answers
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